81371654

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2777}}^1$

素因数の和:2829

約数の個数: 48

約数和(自身を含む): 159612768

約数和(自身を除く): 78241114

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 637, 1127, 1274, 2093, 2254, 2777, 4186, 5554, 14651, 19439, 29302, 36101, 38878, 63871, 72202, 127742, 136073, 252707, 272146, 447097, 505414, 830323, 894194, 1660646, 1768949, 3129679, 3537898, 5812261, 6259358, 11624522, 40685827, 81371654]

約数ペア:

[(1, 81371654), (2, 40685827), (7, 11624522), (13, 6259358), (14, 5812261), (23, 3537898), (26, 3129679), (46, 1768949), (49, 1660646), (91, 894194), (98, 830323), (161, 505414), (182, 447097), (299, 272146), (322, 252707), (598, 136073), (637, 127742), (1127, 72202), (1274, 63871), (2093, 38878), (2254, 36101), (2777, 29302), (4186, 19439), (5554, 14651)]